Staple-retainer.



L. M. VANCE.

STAPLE RETAINER.

APPLICATION FILED JULY 22, 1914.

1, 1 137, 1 1 7,, Patented Feb. 2, 1915.

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LEE IVLVANCE, 0F DAVIS, CALIFORNIA, ASSIGNOR TO THE VANCE COMPANYINCORPORATED.

STAPLE-RETAINER Specification of Letters Patent.

Patented Feb. 2, 1915.

Application filed July 28, 1914. Serial No. 853,744.

To all whom it may concern:

Be it known that I, LEE M. VANCE, citizen of the United States, residingat Davis, in the county of Yolo andState of California, have inventedcertain new and useful Tmprovements in Staple-Retainers, of which thefollowing is a specification.

This invention relates to new and useful improvements in stapleretainers of the type employed in connection with concrete or otherplastic posts of a similar nature.

One of the principal objects of the invention is to construct theretainer with such regard to proportion, number and arrangement of partsthat it may be cheaply manufactured, will be durable and efiicient inservice and may be easily and quickly applied to the post with a minimumexpenditure of time and labor.

Another and more specific object of the invention is to provide aretainer which is formed from a single sheet of metal of sub stantiallytrapezoidal shape and consists essentially of a body portion, atriangular tongue, and a pair of staple receiving channels whichconverge toward the tongue and are produced by rolling the non-paralleledges of the body portion so as to form tubes.

A further object is to form the tubular members, which receive theshanks of the staple, in such a manner that their most widely separatedterminals may be crimped or flattened so as to form a closure, making itimpossible for the concrete to enter the tubular members during themolding of the 0st. p A still further object and one of equal importancewith the foregoing is to locate the tongue, referred to above, in suchrelation to the open terminals of the tubes that these terminals of thetubes will be closed by the mold pallet when the tongue of the retaineris inserted therein during the manufacture of the post.

The above recited and other incidental objects of a similar nature areaccomplished by such means as are illustrated in the accompanyingdrawings, described in the following specification and then moreparticularly pointed out in the claims which are appended hereto andform a part of this application.

Referring now to the drawings, wherein there has been illustrated thepreferred embodiment of this invention as it is reduced to practice, andthroughout the several views of which similar reference charactersdesignate corresponding parts, Figure l is a perspective View of aconcrete post provided with a pair of the staple retainers; Fig. 2 is asection on the line 22 of Fig. 4, and disclosing the retainer asembedded in a post; Fig. 3 is a similar view taken on the line 33 ofFig. 4; Fig. 4 is a detail perspective view of the staple retainer indisassembled position; Fig. 5 isa view of the blank from which theretainer is formed.

The single sheet metal blank from which my staple retainer is fashionedis illustrated in detail in Fig. 5. By referring to this ligure, it willbe seen that the blank is substantially trapezoidal in shape and thatthe edge 10 (which is the shorter of the two parallel edges) is cut awayto produce a substantially triangular tongue 11 which is centrallylocated with respect to the edge 10. This tongue member 11 is adapted tobe inserted in the pallet of the mold for properly positioning theretainer during the manufacture of the post, in a manner which will behereinafter further described.

It will be seen that the cutting away of the edge 10 of the blank toform the tongue 11 results in the formation of the terminal lobes A andB. These members A and B are rounded so that, when the staple receivingtubes are formed (in a manner which will be hereinafter described),their forward terminals will be provided with a circular edge which liesflush with the straight edges C and D. The corners of the blank arecutaway, as at E and F, so that the rear terminals of the staplereceiving tubes will lie flush with the longer of the parallel edges ofthe blank.

As shown particularly in Fig. 4, the nonparallel edges 12 and 13 of theblank are rolled over a former to produce the tubes 14 and 15. Thesetubes converge in the direction of the shorter edge 10 of the body ofthe retainer. Those terminals of the tubes 1e and 15, which are adjacentthe longer edge 16, are flattened or crimped, as indicated at 19 and 20,so that a closure is provided for one terminal of each tube. The

' admitting the shanks of a staple.

other terminals of the tubes are open, being thus formed with theobvious purpose of From the foregoing description, it will be plainlyseen that, when the tongue is inserted in a metal pallet, the normallyopen terminals of the tubes will be closed by the pallet so that, whenthe concrete or plastic material of which the post is to be made istamped in the mold and about the retainer, none of the material mayenter the tube.

In concluding the description of my invention, I desire to particularlyemphasize the fact that my chief aim has been to produce a stapleretainer which may be manufactured at the lowest possible cost, butwhich will, at the same time, be possessed of all the necessaryattributes of an efficient retainer. Apparently, I have accomplishedthis end by forming a retainer from a single sheet of metal which isshaped to provide not only tubular members for receiving staple shanks,but also a tongue which may be inserted in the mold pallet forpositioning the retainer and for closing the open terminals of thetubes.

In reduction to practice, it has been found that the form of thisinvention illustrated in the drawings, and referred to in the abovedescription as the preferred embodiment, is

' the most etlicient and practical; yet realizing that the conditionsconcurrent with the adoption of this device will necessarily vary, it isdesired to emphasize the fact that various minor changes in details ofconstruction, proportion and arrangement of parts may be resorted to,when required, without sacrificing any of the advantages of thisinvention, as defined in the appended claims.

Having thus described the invention, what is claimed as new is:

1. A staple retainer including a substantially trapezoidal body portion,staple receiving tubes formed by rolling the nonparallel edges thereof,and a tongue eXtend ing from the shorter of the parallel edges of Copiesof this body portion,

patent may be obtained. for five cents each, by addressing the sides ofthe tongue being cut-away to provide rounded edges.

2. A staple retainer formed from a single blank of metal and including atrapezoidal a pointed tongue extending from the shorter of the paralleledges thereof, non-parallel staple receiving members formed by bendinginwardly the non-parallel edges of the body portion, the most widelyspaced terminals of the staple receiving members being flattened to formclosures.

'3. A staple retainer formed from a single blank of metal ofsubstantially trapezoidal form and including a body portion, asubstantially triangular tongue extending from the shorter edge thereof,and integrally formed staple receiving tubes located at the non-paralleledges of the body portion, the closely spaced terminals of the tubesbeing open and the widely spaced terminals of the tubes being closed byflattening the metal thereof.

A. A blank for a staple retainer of the character described formed froma substantially trapezoidal sheet metal blank, having theshorter of itstwo parallel edges cut away to produce a centrally located triangulartongue, and a pair of terminal lobes, and

having the terminals of the longer of the Commissioner of Patents,

Washington, D. G.

